2007

7.7

2010

7.2

1987

5.2

1992

7.7

2007

7.4

1993

6.2

2020

6.9

2001

6.8

2014

6.0

1996

6.1

2003

6.4

2009

4.7

2004

9.9

2008

7.9

1996

5.8

2000

5.5

2003

7.3

2001

5.4

1994

7.4

2009

7.5